<a href="#" onclick="try {
Element.update("container", "\074a href=\"#\" onclick=\"try {\nalert("asd");\n} catch (e) { alert('RJS error:\\n\\n' + e.toString()); alert('alert(\\"asd\\");'); throw e }; return false;\"\076Button\074/a\076\n");
} catch (e) { alert('RJS error:\n\n' + e.toString()); alert('Element.update(\"container\", \"\\074a href=\\\"#\\\" onclick=\\\"try {\\nalert("asd");\\n} catch (e) { alert(\'RJS error:\\\\n\\\\n\' + e.toString()); alert(\'alert(\\\\"asd\\\\");\'); throw e }; return false;\\\"\\076Button\\074/a\\076\\n\");'); throw e }; return false;">Button1</a>

<div id="container">Container</div>